Equipment information:

The 236, 237, and 238 Source-Measure
Units (SMU) are fully programmable instruments,
capable of sourcing and measuring
voltage or current simultaneously. These
systems are really four instruments in one:
voltage source, current source, voltage
measure, and current measure.
Applications
These instruments address a wide variety
of applications, including the characterization
of semiconductor devices and the
measurement of leakage currents or insulation
resistance. They are particularly useful
as source and measuring instruments in
automated test equipment (ATE).